Improved tool foe gas-httees



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Letters Patent Nof:8 2,620, dated September 29, 1868.

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TO ALL -WHOMV 1T MAY CONCERN:-

Be it known thatLJAcou HIMMEI{of Hartford, in the county of Hartford, andS'tate of Connecticut, have invented a new and useful CombinationLTool -for Gas-Fitters; and I do hereby declare that' the following is a full, clear, and exact .description thereof, whereby apersou skilled inthe art `can malicia-nd use the same,'re fer 'ence Ybeing had to the' accompanying drawings, andto the lettersfof reference marked thereon.

Like letters in `the gures indicate the sameparts Figure* 1 shows a at or side vicwof the improved tool.

Figure `2 shows an edge view of the same",

My invention consists in combining'together, in onetool, a cutterV for cutting volf the ends of metal pipes,

a scraper or file for cleaning 'the surface, preparatory to formingalscrew, dies forA cutting the thread, and a' cramp for holding the pipe,'to turn it; also in arranging the frane or stock so that it willserve the above purposes. l I

A is the frame Or stock, containing the several parts'of thetool. Y

B'is a handle, 'having a screw, S, which passes through an enlarged 'part of"v the stock at m t'o operate the' several parts of the tool. It is furnished with a hole, b, for the introductionof a pin, P, for turning up the screw more tightly than ycan be done by the handle. v

C is a removable handle, attachedto the frame bymeans of a screw passing into the part n.

This handle is attached' to the frame when the tool is used for cutting a screw-thread on a pipe, vbut is removed for the other operations described. It also has a hole, c, for setting it up tightV by a'pin, P.

D is a cylindrical plug, carrying the cutterwheel L.

This plug fits and wprks in an opening through the enlarged part ofthe frame o, and is operated by the screw S to press it outward toward the angular jaw K. v

The jaw is made with inclined sides, as shown in the drawings, so as to hold a. pipe-of any-sizermly while being cut. I l

The cutter Lis fastenedA in4 the end 'of- D by means of the axis-Z,-which can be removed by driving out with a pin-for the purpose of removing the wheel. l i' The part Dhas a cross-piece, d, fouguidi-ng its upper end.

E is a block, furnished with a concave scraper or file, to remove thecrust or corroded part from a pipe preparatory to cutting aiscrew-thread upon it.

The cross-piece d has upon its side next the scraper E, a recess, e, with inclined sides for the pipe to turn in while being scraped.

F Fare the two parts of a die for cutting a screw-thread upon the end of. a. pipe. The pieces are madereversible, and have upon opposite sides diferent threads forA different sizes of pipe, `as shown at ff and g'g.

There may be as many asjdesired ofl these dies, six being the ordinary number required for the usual sizes Of pipe.

G is a piece interposed between the end ofthe screw S sind the dies, to prevent the point of the screw coming in Contact lwith`the thread of the die, and injuring it.

The parts d, E, F, and G slide back and forth along the sides of the frame, so that they can be placed in I any desired position -for use, and are. secured the stock, and prevented from coming.out, by sliding in a groove, formed on one side by dove-telling the sides of the frame, and on the other by the pieces Brandl, which are screwed to the frame by the screws a a ava.

I has a part, i, cut away, to allow of its being turnedl to one side when it-is desired to remove orrepluce an'y of the parts. t

' The head of the screw'a. is furnished with holes, so that it can be turned by means of the pin P.

The operation of my invention is as follows l When it is desired to cut oi a pipe, theha-ndleC is removed, and the pipe inserted between the jaw K and the cutter L'. The handle B is' screwed firmly in, and acts, through the parts G, F, E, all, and D, upon the cutter to press it into the metal-of the pipe. The tool is then turned round, rolling the cutter, L, around the cireumference of the pipe. The screw S is kept turned forcibly up, by meanso` the p in P- inscrted in the hole b, and soon cuts off the pipe.

When it is desired to take hold of and turn a pipe, the wheel L is removed, and the edge h forcedagainst the pipe by means of the screw S, whicl1 holds it while being turned.

When it is desired to scrape oh" the scale from a pipe, the part d is placed against the end, o, of the frame, and the pipe inserted between the parts E and c. The screw S is then turned up tight, and the tool revolved, when the le-surface upon E takes ol` the scaleor corrosion.

To cut a screw-thread on a pipe, the handle C is screwed into its place, and Athe proper dies placed in the stock, by loosening the capstan-headed screw a', with the pin P, and turning aside the piece I. After inserting the dies, the piece I is turned baciato its place, and the screw tightened again. The lower die and the parts (l and E are placed against; cach other, and the end of the frame o, and the upper die and piece G, against the end of thc screw S. The pipe is placed' between the dies, and the screw cut in the ordinary manner.

Claim.

What I claim as my invention, and desire to secure by Letters Patent, is- An improved combination-tool, constructed and arranged substantially as described..

' JACOB HIMMER. Witnesses:

FRAs. AUG. HENRY, THEo.G. ELLIs. 

